Channel
instruction Manual
Page
Installation & Interfacing
2.6 OUTPUT CONNECTORS
There are two output connectors located on the
rear panel: one 1/4” TRS phone type and one XLR-
3M type. They can be used at the same time to feed
separate equipment.
The output level at the XLR is +4dBu
impedance
balanced
, while the TRS balanced/unbalanced jack
is switchable between -10dBV (consumer level) and
+4dBU (professional level).
If you intend to make an unbalanced output from
the XLR jack, simply take “hot” from pin 2 and
use pin 1 for ground. Leave pin 3 unconnected or
grounded.
Never ground pin 2.
2
. DIGITAL AUDIO OUTPUTS
The processed mic signal is converted to digital in
both channels at equal level as a mono signal. There
is no provision to externally drive one of the A/D Con-
verter inputs.
2.8 WORD CLOCK
2.8.1 Clock Select
Synchronization is selected by the Clock Select button
on the front panel. Sample rates of 44.1, 48, 88.2 or
96kHz are supported.
2.8.2 WC IN
This BNC jack is provided to receive your master clock
source. It will accept industry standard Word Clock,
from less than 1 to over 5Vp-p pulse amplitude. It
does not accept AES/EBU or Superclock.
2.8.3 WC OUT
The Channel provides a very accurate internal word
clock generator. When using the Channel as a clock
master, the word clock signal is sent from the BNC
word clock output. Note that the Channel does not
support word clock THRU. External clock signals
received at the BNC input are not routed to the BNC
output. A word clock distribution device should be
used in systems with multiple digital devices.
2.9 POWER SUPPLY
The Channel is internally powered from a standard
IEC power receptacle on the rear panel. Be sure you
use a power cord that is approved for use in your
jurisdiction.
Soft-start, overload foldback limiting, and accros-the-
line voltage spike protection is incorporated to protect
the power supply from damage that might be caused
by component failure or power line disturbances. If
the internal fuse blows out, a catastrophic failure has
occurred and simply replacing the fuse will not fix the
problem. Due to the extensive protective measures
used, it is highly unlikely a catastrophic power supply
failure will ever occur. However, if it does, you should
contact the factory or a competent service technician
to affect repairs. There are no user serviceable parts
inside.
100 to 240V~, 50 to 60Hz
ACCEPTABLE POWER RANGE
2.9.1 Cough Switch
Voice artists/actors often find it necessary to clear the
throat, sip a beverage, or cough during narration.
Thus, a convenient mute and unmute jack is provided.
Any standard momentary or latching foot pedal or
switch wired to a mono phone plug will work. Usu-
ally, a desktop box mounted silent pushbutton is pre-
ferred, as it can be accessed most readily.
XLR:
AES/EBU 110
Ω
@ 5Vp-p
RCA:
S/PDIF 75
Ω
@ 1Vp-p
OPTICAL:
Toslink S/PDIF encoded for optical fiber.
DIGITAL OUTPUT DEFINITIONS
Aphex Channel
